DETROIT -- September was another difficult month for carmakers.
Toyota, the Ford Motor Company and Chrysler each said Wednesday that their sales in the United States fell more than 30 percent in September, as volatility in the financial markets compounded what already had been a miserable year for the auto industry.
But sales were better than expected at General Motors, which reported a 16 percent decline and estimated that its market share rose to the highest level in more than three years.